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Sat, 04 May 2024 00:14:21 -0700 (PDT) Received: from google.com ([2401:fa00:8f:203:a616:7211:d0ce:9ad9]) by smtp.gmail.com with ESMTPSA id b185-20020a6334c2000000b0061f42afa8d0sm1391585pga.6.2024.05.04.00.14.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 04 May 2024 00:14:20 -0700 (PDT) Date: Sat, 4 May 2024 16:14:16 +0900 From: Sergey Senozhatsky To: kernel test robot Cc: Sergey Senozhatsky , Andrew Morton , Minchan Kim , llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, Linux Memory Management List , linux-kernel@vger.kernel.org, linux-block@vger.kernel.org Subject: Re: [PATCH 08/14] zram: check that backends array has at least one backend Message-ID: <20240504071416.GH14947@google.com> References: <20240503091823.3616962-9-senozhatsky@chromium.org> <202405041440.UTBQZAaf-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <202405041440.UTBQZAaf-lkp@intel.com> X-Stat-Signature: 5o18z87kcsorfa7hhnm4jcqftxr8g5h9 X-Rspamd-Queue-Id: 295F4C000E X-Rspam-User: X-Rspamd-Server: rspam12 X-HE-Tag: 1714806882-704156 X-HE-Meta: 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 OiWvXt6m 5bEnoODDA0rpv15BP73aZkWfyqaWB3yrPvYBksIdfox5QrOVIrInAI73nAQYzEJs9vu2IRbVy0Ka6lD+mpMCh+Cj8dadR8OTiXX0Rm3qHJ2633yoypAnR0X/1JlF7iSr1tj9Df0IOEMQXpnTUkMgDC7/lL/OTFmdrBBvwgl8ea8mZ0gtzY5SEBFGE7z6IHUUOWdBP5Sl/dPP13yJmCM2lZBRl93zIhNhlrFYlGx6RHGJn/5ngF0MJS5z8KDKMdG6zgfUGtmYa5kE77DLIj05gqByF25nKi3yDIFTwfmnn5z/lFe1jimpBoR4ao72w5xqGcVD+L15TFU9vFlZ2HVAXKQoMrjgBu+etRDl7Z19XfEaNGwj1XtgbNcdRZ/F65Wo3eU3yOdHbV+Fh6VU= X-Bogosity: Ham, tests=bogofilter, spamicity=0.081475, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On (24/05/04 14:54), kernel test robot wrote: > | ~~~~~~~~~~~~~~~~~~~~~~ > >> drivers/block/zram/zcomp.c:214:2: error: call to '__compiletime_assert_285' declared with 'error' attribute: BUILD_BUG_ON failed: ARRAY_SIZE(backends) <= 1 > 214 | BUILD_BUG_ON(ARRAY_SIZE(backends) <= 1); > | ^ So this is what that BUILD_BUG_ON() is supposed to catch. You don't have any backends selected in your .config: # CONFIG_ZRAM_BACKEND_LZO is not set # CONFIG_ZRAM_BACKEND_LZ4 is not set # CONFIG_ZRAM_BACKEND_LZ4HC is not set # CONFIG_ZRAM_BACKEND_ZSTD is not set # CONFIG_ZRAM_BACKEND_DEFLATE is not set CONFIG_ZRAM_DEF_COMP="unset-value" Which is invalid configuration because it means that zram has no compression enabled.